Keep your keys safe with this Master Lock 5400D Portable Lock Box. With a diameter of 4 inches and a height of 4 inches, it is a perfect size to carry around with you. The box is made of durable metal material and is water-resistant and weather-resistant, ensuring that your keys stay secure no matter the weather. The lock mechanism is a combination dial that holds up to 5 keys. The box comes with a pouch for easy storage and transport. The shackle size is 35mm, and the item weighs 1 pound. This portable lock box is compatible with Master Lock brand and model 5400D. Get your hands on this secure and durable lock box today!